Visit Port Discovery this weekend and next week for a variety of entertainment and activities. On Saturday, visitors can hear tunes from the Kindersinger. The kids' performer presents "Songs From Around the World" at 1 p.m. and 2 p.m. Then at 3 p.m. on Saturday, music fans can enjoy a performance by Peabody Preparatory violinists. And on Wednesday, from 9:30 a.m. to 4:30 p.m., children 2 to 7 can learn flower painting at the "Wonderful Wednesday" program. Visitors can also take part in daily weaving workshops, sign language classes and story time events. And the exhibit Miffy and Friends will continue through May 15.